A tissue of absurdities

For some reason, the last five or so tissues in this cheap generic-brand box in my living room are blue instead of white. I don't know much about how facial tissues are manufactured, but that seems kinda bizarre. You'd think they made the blue ones and the white ones on separate assembly lines er somethin, so that there'd be no chance they'd end up in the same box.

Aha, wait! They might in fact have done this on purpose so you'd know when you were running out. Now that I think about it, that's actually pretty cool. In that case, though, I wonder why the less cheap brands don't do it.